Base | Representation |
---|---|
bin | 11111000000110110100… |
… | …111001110111010111011 |
3 | 21112202001101111012112010 |
4 | 133000312213032322323 |
5 | 234404214312030321 |
6 | 4311022521421003 |
7 | 306655422245403 |
oct | 37006647167273 |
9 | 7482041435463 |
10 | 2131220033211 |
11 | 751933169a25 |
12 | 2a506533a763 |
13 | 125c86125939 |
14 | 75219dc1803 |
15 | 3a687ed7676 |
hex | 1f0369ceebb |
2131220033211 has 8 divisors (see below), whose sum is σ = 2841677560384. Its totient is φ = 1420787930760.
The previous prime is 2131220033203. The next prime is 2131220033233. The reversal of 2131220033211 is 1123300221312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2131220033211 - 23 = 2131220033203 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2131220033291) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6159721 + ... + 6496506.
It is an arithmetic number, because the mean of its divisors is an integer number (355209695048).
Almost surely, 22131220033211 is an apocalyptic number.
2131220033211 is a deficient number, since it is larger than the sum of its proper divisors (710457527173).
2131220033211 is a wasteful number, since it uses less digits than its factorization.
2131220033211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12712361.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 2131220033211 its reverse (1123300221312), we get a palindrome (3254520254523).
The spelling of 2131220033211 in words is "two trillion, one hundred thirty-one billion, two hundred twenty million, thirty-three thousand, two hundred eleven".
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